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                <h1 class="post-title" itemprop="name headline"> Python爬虫进阶七之设置ADSL拨号服务器代理 </h1>
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                <h2 id="提示"><a href="#提示" class="headerlink" title="提示"></a>提示</h2>
                <p>本教程方法已不是最优，最新解决方案请移步 <a href="http://cuiqingcai.com/4596.html">http://cuiqingcai.com/4596.html</a></p>
                <h2 id="那夜"><a href="#那夜" class="headerlink" title="那夜"></a>那夜</h2>
                <p>那是一个寂静的深夜，科比还没起床练球，虽然他真的可能不练了。 我废了好大劲，爬虫终于写好了！BUG也全部调通了！心想，终于可以坐享其成了！ 泡杯茶，安静地坐在椅子上看着屏幕上一行行文字在控制台跳出，一条条数据嗖嗖进入我的数据库，一张张图片悄悄存入我的硬盘。人生没有几个比这更惬意的事情了。 我端起茶杯，抿了一口，静静地回味着茶香。 这时，什么情况！屏幕爆红了！爆红了！一口茶的功夫啊喂！ 怎么回事！咋爬不动了，不动了！我用浏览器点开那一个个报错的链接，浏览器显示</p>
                <blockquote>
                  <p>您的请求过于频繁，IP已经被暂时封禁，请稍后再试！</p>
                </blockquote>
                <p>沃日，我IP被封了？此时此刻，空气凝固了，茶也不再香了，请给我一个爱的抱抱啊。 时候不早了，还是洗洗睡吧。</p>
                <h2 id="次日"><a href="#次日" class="headerlink" title="次日"></a>次日</h2>
                <p>那一晚，辗转反侧难以入睡。 怎么办？怎么办？如果是你你该怎么办？ 手动换个IP？得了吧，一会又要封了，还能不能安心睡觉啊？ 找免费代理？可行，不过我之前测过不少免费代理IP，一大半都不好用，而且慢。不过可以一直维护一个代理池，定时更新。 买代理？可以可以，不过优质的代理服务商价格可是不菲的，我买过一些廉价的，比如几块钱套餐一次提取几百IP的，算了还是不说了都是泪。 然而最行之有效的方法是什么？那当然是ADSL拨号！ 这是个啥？且听我慢慢道来。</p>
                <h2 id="什么是ADSL"><a href="#什么是ADSL" class="headerlink" title="什么是ADSL"></a>什么是ADSL</h2>
                <p>ADSL （Asymmetric Digital Subscriber Line ，非对称数字用户环路）是一种新的数据传输方式。它因为上行和下行带宽不对称，因此称为非对称数字用户线环路。它采用频分复用技术把普通的电话线分成了电话、上行和下行三个相对独立的信道，从而避免了相互之间的干扰。 他有个独有的特点，每拨一次号，就获取一个新的IP。也就是它的IP是不固定的，不过既然是拨号上网嘛，速度也是有保障的，用它搭建一个代理，那既能保证可用，又能自由控制拨号切换。 如果你是用的ADSL上网方式，那就不用过多设置了，直接自己电脑调用一个拨号命令就好了，自动换IP，分分钟解决封IP的事。 然而，你可能说？我家宽带啊，我连得公司无线啊，我蹭的网上的啊！那咋办？ 这时，你就需要一台VPS拨号主机。</p>
                <h2 id="购买服务器"><a href="#购买服务器" class="headerlink" title="购买服务器"></a>购买服务器</h2>
                <p>某度广告做的那么好是吧？一搜一片，这点谷歌可是远远比不上啊。 于是乎，我就搜了搜，键入：拨号服务器，有什么骑士互联啊、无极网络啊、挂机宝啊等等的。我选了个价钱还凑合的，选了个无极网络（这里不是在打广告），80一个月的配置，一天两块钱多点。 2核、512M内存，10M带宽。 <a href="http://www.yunlifang.cn/" target="_blank" rel="noopener">云立方</a> 大家觉得有更便宜的更好用请告诉我呀！ 接下来开始装操作系统，进入后台，有一个自助装系统的页面。 <a href="http://qiniu.cuiqingcai.com/wp-content/uploads/2016/11/QQ20161121-0.png" target="_blank" rel="noopener"><img src="http://qiniu.cuiqingcai.com/wp-content/uploads/2016/11/QQ20161121-0-1024x399.png" alt="QQ20161121-0"></a> 我装的CentOS的，在后面设置代理啊，定时任务啊，远程SSH管理啊之类的比较方便。如果你想用Windows，能配置好代理那也没问题。 有的小伙伴可能会问了，既然它的IP是拨号变化的，你咋用SSH连？其实服务商提供了一个域名，做了动态解析和端口映射，映射到这台主机的22端口就好了，所以不用担心IP变化导致SSH断开的问题。 好了装好了服务器之后，服务商提供了一个ADSL的拨号操作过程，用pppoe命令都可以完成，如果你的是Linux的主机一般都是用这个。然后服务商还会给给你一个拨号账号和密码。 那么接下来就是试下拨号了。 服务商会提供详细的拨号流程说明。 比如无极的是这样的： <a href="http://cloud.871020.com/vpsadm/pppoe.html" target="_blank" rel="noopener">拨号流程</a> 设置好了之后，就有几个关键命令：</p>
                <figure class="highlight sql">
                  <table>
                    <tr>
                      <td class="gutter">
                        <pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre>
                      </td>
                      <td class="code">
                        <pre><span class="line">pppoe-<span class="keyword">start</span> 拨号</span><br><span class="line">pppoe-<span class="keyword">stop</span>  断开拨号</span><br><span class="line">pppoe-<span class="keyword">status</span> 拨号连接状态</span><br></pre>
                      </td>
                    </tr>
                  </table>
                </figure>
                <p>如果想重新拨号，那就执行stop、start就可以了。 反复执行，然后查看下ip地址，你会发现拨号一次换一个IP，是不是爽翻了！ 好，那接下来就设置代理吧。</p>
                <h2 id="设置代理服务器"><a href="#设置代理服务器" class="headerlink" title="设置代理服务器"></a>设置代理服务器</h2>
                <p>之前总是用别人的代理，没自己设置过吧？那么接下来我们就来亲自搭建HTTP代理。 Linux下搭建HTTP代理，推荐Squid和TinyProxy。都非常好配置，你想用哪个都行，且听我慢慢道来。 我的系统是CentOS，以它为例进行说明。</p>
                <h3 id="Squid"><a href="#Squid" class="headerlink" title="Squid"></a>Squid</h3>
                <p>首先利用yum安装squid</p>
                <figure class="highlight cmake">
                  <table>
                    <tr>
                      <td class="gutter">
                        <pre><span class="line">1</span><br></pre>
                      </td>
                      <td class="code">
                        <pre><span class="line">yum -y <span class="keyword">install</span> squid</span><br></pre>
                      </td>
                    </tr>
                  </table>
                </figure>
                <p>设置开机启动</p>
                <figure class="highlight nginx">
                  <table>
                    <tr>
                      <td class="gutter">
                        <pre><span class="line">1</span><br></pre>
                      </td>
                      <td class="code">
                        <pre><span class="line"><span class="attribute">chkconfig</span> --level <span class="number">35</span> squid <span class="literal">on</span></span><br></pre>
                      </td>
                    </tr>
                  </table>
                </figure>
                <p>修改配置文件</p>
                <figure class="highlight vim">
                  <table>
                    <tr>
                      <td class="gutter">
                        <pre><span class="line">1</span><br></pre>
                      </td>
                      <td class="code">
                        <pre><span class="line"><span class="keyword">vi</span> /etc/squid/squid.<span class="keyword">conf</span></span><br></pre>
                      </td>
                    </tr>
                  </table>
                </figure>
                <p>修改如下几个部分：</p>
                <figure class="highlight yaml">
                  <table>
                    <tr>
                      <td class="gutter">
                        <pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre>
                      </td>
                      <td class="code">
                        <pre><span class="line"><span class="string">http_access</span> <span class="string">allow</span> <span class="type">!Safe_ports</span>    <span class="comment">#deny改成allow</span></span><br><span class="line"><span class="string">http_access</span> <span class="string">allow</span> <span class="string">CONNECT</span> <span class="type">!SSL_ports</span>  <span class="comment">#deny改成allow</span></span><br><span class="line"><span class="string">http_access</span> <span class="string">allow</span> <span class="string">all</span>  <span class="comment">#deny改成allow</span></span><br></pre>
                      </td>
                    </tr>
                  </table>
                </figure>
                <p>其他的不需要过多配置。 启动squid</p>
                <figure class="highlight routeros">
                  <table>
                    <tr>
                      <td class="gutter">
                        <pre><span class="line">1</span><br></pre>
                      </td>
                      <td class="code">
                        <pre><span class="line">sudo<span class="built_in"> service </span>squid start</span><br></pre>
                      </td>
                    </tr>
                  </table>
                </figure>
                <p>如此一来配置就完成了。 代理使用的端口是3128</p>
                <h3 id="TinyProxy"><a href="#TinyProxy" class="headerlink" title="TinyProxy"></a>TinyProxy</h3>
                <p>首先添加一下镜像源，然后安装</p>
                <figure class="highlight properties">
                  <table>
                    <tr>
                      <td class="gutter">
                        <pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre>
                      </td>
                      <td class="code">
                        <pre><span class="line"><span class="attr">rpm</span> <span class="string">-Uvh http://dl.fedoraproject.org/pub/epel/5/i386/epel-release-5-4.noarch.rpm</span></span><br><span class="line"><span class="attr">yum</span> <span class="string">update</span></span><br><span class="line"><span class="attr">yum</span> <span class="string">install tinyproxy</span></span><br></pre>
                      </td>
                    </tr>
                  </table>
                </figure>
                <p>修改配置</p>
                <figure class="highlight vim">
                  <table>
                    <tr>
                      <td class="gutter">
                        <pre><span class="line">1</span><br></pre>
                      </td>
                      <td class="code">
                        <pre><span class="line"><span class="keyword">vi</span> /etc/tinyproxy/tinyproxy.<span class="keyword">conf</span></span><br></pre>
                      </td>
                    </tr>
                  </table>
                </figure>
                <p>可以修改端口和允许的IP，如果想任意主机都连接那就把Allow这一行注释掉。</p>
                <figure class="highlight angelscript">
                  <table>
                    <tr>
                      <td class="gutter">
                        <pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br></pre>
                      </td>
                      <td class="code">
                        <pre><span class="line">Port <span class="number">8888</span> #预设是<span class="number">8888</span> Port,你可以更改</span><br><span class="line">Allow <span class="number">127.0</span><span class="number">.0</span><span class="number">.1</span> #将<span class="number">127.0</span><span class="number">.0</span><span class="number">.1</span>改成你自己的IP</span><br><span class="line">#例如你的IP 是<span class="number">1.2</span><span class="number">.3</span><span class="number">.4</span>,你改成Allow <span class="number">1.2</span><span class="number">.3</span><span class="number">.4</span>,那只有你才可以连上这个Proxy</span><br><span class="line">#若你想任何IP都可以脸到Proxy在Allow前面打#注释</span><br></pre>
                      </td>
                    </tr>
                  </table>
                </figure>
                <p>启动TinyProxy</p>
                <figure class="highlight crmsh">
                  <table>
                    <tr>
                      <td class="gutter">
                        <pre><span class="line">1</span><br></pre>
                      </td>
                      <td class="code">
                        <pre><span class="line">service tinyproxy <span class="literal">start</span></span><br></pre>
                      </td>
                    </tr>
                  </table>
                </figure>
                <p>好了，两个代理都配置好了。 你想用那个都可以！ 不过你以为这样就完了吗？太天真了，我被困扰了好几天，怎么都连不上，我还在怀疑是不是我哪里设置得不对？各种搜，一直以为是哪里配置有遗漏，后来发现是iptables的锅，万恶的防火墙。踩过的的坑，那就不要让大家踩了，用下面的命令设置下iptables，放行3128和8888端口就好了。</p>
                <figure class="highlight properties">
                  <table>
                    <tr>
                      <td class="gutter">
                        <pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br></pre>
                      </td>
                      <td class="code">
                        <pre><span class="line"><span class="attr">service</span> <span class="string">iptables save</span></span><br><span class="line"><span class="attr">systemctl</span> <span class="string">stop firewalld</span></span><br><span class="line"><span class="attr">systemctl</span> <span class="string">disable  firewalld</span></span><br><span class="line"><span class="attr">systemctl</span> <span class="string">start iptables</span></span><br><span class="line"><span class="attr">systemctl</span> <span class="string">status iptables</span></span><br><span class="line"><span class="attr">systemctl</span> <span class="string">enable iptables</span></span><br></pre>
                      </td>
                    </tr>
                  </table>
                </figure>
                <p>修改iptables配置</p>
                <figure class="highlight awk">
                  <table>
                    <tr>
                      <td class="gutter">
                        <pre><span class="line">1</span><br></pre>
                      </td>
                      <td class="code">
                        <pre><span class="line">vi <span class="regexp">/etc/</span>sysconfig<span class="regexp">/iptables</span></span><br></pre>
                      </td>
                    </tr>
                  </table>
                </figure>
                <p>在</p>
                <figure class="highlight brainfuck">
                  <table>
                    <tr>
                      <td class="gutter">
                        <pre><span class="line">1</span><br></pre>
                      </td>
                      <td class="code">
                        <pre><span class="line"><span class="literal">-</span><span class="comment">A</span> <span class="comment">IN_public_allow</span> <span class="literal">-</span><span class="comment">p</span> <span class="comment">tcp</span> <span class="literal">-</span><span class="comment">m</span> <span class="comment">tcp</span> --<span class="comment">dport</span> <span class="comment">22</span> <span class="literal">-</span><span class="comment">m</span> <span class="comment">conntrack</span> --<span class="comment">ctstate</span> <span class="comment">NEW</span> <span class="literal">-</span><span class="comment">j</span> <span class="comment">ACCEPT</span></span><br></pre>
                      </td>
                    </tr>
                  </table>
                </figure>
                <p>的下面添加两条规则</p>
                <figure class="highlight brainfuck">
                  <table>
                    <tr>
                      <td class="gutter">
                        <pre><span class="line">1</span><br><span class="line">2</span><br></pre>
                      </td>
                      <td class="code">
                        <pre><span class="line"><span class="literal">-</span><span class="comment">A</span> <span class="comment">IN_public_allow</span> <span class="literal">-</span><span class="comment">p</span> <span class="comment">tcp</span> <span class="literal">-</span><span class="comment">m</span> <span class="comment">tcp</span> --<span class="comment">dport</span> <span class="comment">3128</span> <span class="literal">-</span><span class="comment">m</span> <span class="comment">conntrack</span> --<span class="comment">ctstate</span> <span class="comment">NEW</span> <span class="literal">-</span><span class="comment">j</span> <span class="comment">ACCEPT</span></span><br><span class="line"><span class="comment"></span><span class="literal">-</span><span class="comment">A</span> <span class="comment">IN_public_allow</span> <span class="literal">-</span><span class="comment">p</span> <span class="comment">tcp</span> <span class="literal">-</span><span class="comment">m</span> <span class="comment">tcp</span> --<span class="comment">dport</span> <span class="comment">8888</span> <span class="literal">-</span><span class="comment">m</span> <span class="comment">conntrack</span> --<span class="comment">ctstate</span> <span class="comment">NEW</span> <span class="literal">-</span><span class="comment">j</span> <span class="comment">ACCEPT</span></span><br></pre>
                      </td>
                    </tr>
                  </table>
                </figure>
                <p>如图所示 <a href="http://qiniu.cuiqingcai.com/wp-content/uploads/2016/11/QQ20161121-0@2x.png" target="_blank" rel="noopener"><img src="http://qiniu.cuiqingcai.com/wp-content/uploads/2016/11/QQ20161121-0@2x-1024x688.png" alt="QQ20161121-0@2x"></a> 保存，然后重启iptables</p>
                <figure class="highlight routeros">
                  <table>
                    <tr>
                      <td class="gutter">
                        <pre><span class="line">1</span><br></pre>
                      </td>
                      <td class="code">
                        <pre><span class="line">sudo<span class="built_in"> service </span>iptabels restart</span><br></pre>
                      </td>
                    </tr>
                  </table>
                </figure>
                <p>输入 ifconfig得到IP地址，在其他的主机上输入</p>
                <figure class="highlight css">
                  <table>
                    <tr>
                      <td class="gutter">
                        <pre><span class="line">1</span><br></pre>
                      </td>
                      <td class="code">
                        <pre><span class="line"><span class="selector-tag">curl</span> <span class="selector-tag">-x</span> <span class="selector-tag">IP</span><span class="selector-pseudo">:8888</span> <span class="selector-tag">www</span><span class="selector-class">.baidu</span><span class="selector-class">.com</span></span><br></pre>
                      </td>
                    </tr>
                  </table>
                </figure>
                <p>测试一下，如果能出现结果，那就说明没问题。 <a href="http://qiniu.cuiqingcai.com/wp-content/uploads/2016/11/QQ20161121-1@2x.png" target="_blank" rel="noopener"><img src="http://qiniu.cuiqingcai.com/wp-content/uploads/2016/11/QQ20161121-1@2x-1024x688.png" alt="QQ20161121-1@2x"></a> 如果怎么配都连不上，那干脆关了你的防火墙吧。虽然不推荐。</p>
                <h2 id="连接代理"><a href="#连接代理" class="headerlink" title="连接代理"></a>连接代理</h2>
                <p>接下来才是重头戏，你咋知道你的服务器IP现在到底是多少啊？拨一次号IP就换一次，那这还了得？ 如果服务商提供了端口映射！那一切都解决了！直接用端口映射过去就好了。然而，我的并没有。 自力更生，艰苦创业！ 首先我研究了一下DDNS服务，也就是动态域名解析。即使你的IP在变化，那也可以通过一个域名来映射过来。 原理简单而统一：当前拨号主机定时向一个固定的服务器发请求，服务器获取remote_addr就好了，可以做到定时更新和解析。 那么我找了一下，国内做的比较好的就是花生壳了，然后又找到了DNSPOD的接口解析。 下面简单说下我的折腾过程，大家可以先不用试，后面有更有效的方法。</p>
                <h3 id="花生壳"><a href="#花生壳" class="headerlink" title="花生壳"></a>花生壳</h3>
                <p>现在花生壳出到3.0版本了，有免费版和付费版之分，我就试用了一下免费版的。这里是花生壳的一些配置和下载： <a href="http://service.oray.com/question/4287.html" target="_blank" rel="noopener">花生壳配置</a> 下载花生壳客户端之后，会生成SN码，用这个在花生壳的官网登录后，会分配给你一个免费的域名。 接下来这个域名就能解析到你的主机了。</p>
                <h3 id="DNSPOD"><a href="#DNSPOD" class="headerlink" title="DNSPOD"></a>DNSPOD</h3>
                <p>DNSPOD原理也是一样，不过好处是你可以配置自己的域名。 在GitHub上有脚本可以使用。 <a href="https://github.com/xdtianyu/scripts/tree/master/ddns" target="_blank" rel="noopener">脚本链接</a> 具体的细节我就不说了，实际上就是定时请求，利用remote_addr更新DNSPOD记录，做到动态解析。 <a href="https://www.dnspod.cn/docs/records.html#dns" target="_blank" rel="noopener">解析接口</a> 不过！这两个有个通病！慢！ 什么慢？解析慢！但这不是他们的锅，因为DNS修改后完全生效就是需要一定的时间，这一秒你拨号了，然后更新了IP，但是域名可能还是解析着原来的IP，需要过几分钟才能变过来。这能忍吗？ 我可是在跑爬虫啊，这还能忍？</p>
                <h2 id="自力更生"><a href="#自力更生" class="headerlink" title="自力更生"></a>自力更生</h2>
                <p>嗯，V2EX果然是个好地方，逛了一下，收获不小。 <a href="https://www.v2ex.com/t/249694" target="_blank" rel="noopener">链接在此</a> 参考了 abelyao 的思路，自己写了脚本来获取IP，保证秒级更新！ 此时，你还需要另一台固定IP的主机或者某个云服务器，只要是地址固定的就好。在这里我用了另一台有固定IP的阿里云主机，当然你如果有什么新浪云啊之类的也可以。 那么现在的思路就是，拨号VPS定时拨号换IP，然后请求阿里云主机，阿里云主机获取VPS的IP地址即可。 拨号VPS做的事情： 定时拨号，定时请求服务器。使用bash脚本，然后crontab定时执行。 远程服务器： 接收请求，获取remote_addr，保存起来。使用Flask搭建服务器，接收请求。 废话少说，上代码 <a href="https://github.com/Germey/AutoProxy" target="_blank" rel="noopener">AutoProxy</a></p>
                <h3 id="功能"><a href="#功能" class="headerlink" title="功能"></a>功能</h3>
                <p>由于DDNS生效时间过长，对于爬虫等一些时间要求比较紧迫的项目就不太适用，为此本项目根据DDNS基本原理来实现实时获取ADSL拨号主机IP。</p>
                <h3 id="基本原理"><a href="#基本原理" class="headerlink" title="基本原理"></a>基本原理</h3>
                <p>client文件夹由ADSL拨号客户机运行。它会定时执行拨号操作，然后请求某个固定地址的服务器，以便让服务器获取ADSL拨号客户机的IP，主要是定时bash脚本运行。 server文件夹是服务器端运行，利用Python的Flask搭建服务器，然后接收ADSL拨号客户机的请求，得到remote_addr，获取客户机拨号后的IP。</p>
                <h3 id="项目结构"><a href="#项目结构" class="headerlink" title="项目结构"></a>项目结构</h3>
                <h4 id="server"><a href="#server" class="headerlink" title="server"></a>server</h4>
                <ul>
                  <li>config.py 配置文件。</li>
                  <li>ip 客户端请求后获取的客户端IP，文本保存。</li>
                  <li>main.py Flask主程序，提供两个接口，一个是接收客户端请求，然后将IP保存，另外一个是获取当前保存的IP。</li>
                </ul>
                <h4 id="client"><a href="#client" class="headerlink" title="client"></a>client</h4>
                <ul>
                  <li>crontab 定时任务命令示例。</li>
                  <li>pppoe.sh 拨号脚本，主要是实现重新拨号的几个命令。</li>
                  <li>request.sh 请求服务器的脚本，主要是实现拨号后请求服务器的操作。</li>
                  <li>request.conf 配置文件。</li>
                </ul>
                <h3 id="使用"><a href="#使用" class="headerlink" title="使用"></a>使用</h3>
                <h4 id="服务器"><a href="#服务器" class="headerlink" title="服务器"></a>服务器</h4>
                <p>服务器提供两个功能，record方法是客户机定时请求，然后获取客户机IP并保存。proxy方法是供我们自己用，返回保存的客户机IP，提取代理。</p>
                <h5 id="克隆项目"><a href="#克隆项目" class="headerlink" title="克隆项目"></a>克隆项目</h5>
                <figure class="highlight crmsh">
                  <table>
                    <tr>
                      <td class="gutter">
                        <pre><span class="line">1</span><br></pre>
                      </td>
                      <td class="code">
                        <pre><span class="line">git <span class="keyword">clone</span> <span class="title">https</span>://github.com/Germey/AutoProxy.git</span><br></pre>
                      </td>
                    </tr>
                  </table>
                </figure>
                <h5 id="修改配置"><a href="#修改配置" class="headerlink" title="修改配置"></a>修改配置</h5>
                <p>修改config.py文件</p>
                <ul>
                  <li>KEY 是客户端请求服务器时的凭证，在client的request.conf也有相同的配置，二者保持一致即可。</li>
                  <li>NEED_AUTH 在获取当前保存的IP（即代理的IP）的时候，为防止自己的主机代理被滥用，在获取IP的时候，需要加权限验证。</li>
                  <li>AUTH_USER和AUTH_PASSWORD分别是认证用户名密码。</li>
                  <li>PORT默认端口，返回保存的结果中会自动添加这个端口，组成一个IP:PORT的代理形式。</li>
                </ul>
                <h4 id="运行"><a href="#运行" class="headerlink" title="运行"></a>运行</h4>
                <figure class="highlight routeros">
                  <table>
                    <tr>
                      <td class="gutter">
                        <pre><span class="line">1</span><br><span class="line">2</span><br></pre>
                      </td>
                      <td class="code">
                        <pre><span class="line">cd server</span><br><span class="line">nohup python main.py</span><br></pre>
                      </td>
                    </tr>
                  </table>
                </figure>
                <h4 id="ADSL客户机"><a href="#ADSL客户机" class="headerlink" title="ADSL客户机"></a>ADSL客户机</h4>
                <h5 id="克隆项目-1"><a href="#克隆项目-1" class="headerlink" title="克隆项目"></a>克隆项目</h5>
                <figure class="highlight crmsh">
                  <table>
                    <tr>
                      <td class="gutter">
                        <pre><span class="line">1</span><br></pre>
                      </td>
                      <td class="code">
                        <pre><span class="line">git <span class="keyword">clone</span> <span class="title">https</span>://github.com/Germey/AutoProxy.git</span><br></pre>
                      </td>
                    </tr>
                  </table>
                </figure>
                <h5 id="修改配置-1"><a href="#修改配置-1" class="headerlink" title="修改配置"></a>修改配置</h5>
                <p>修改reqeust.conf文件</p>
                <ul>
                  <li>KEY 是客户端请求服务器时的凭证，在server的config.py也有相同的配置，二者保持一致即可。</li>
                  <li>SERVER是服务器项目运行后的地址，一般为http://&lt;服务器IP&gt;:&lt;服务器端口&gt;/record。如<code>http://120.27.14.24:5000/record</code>。</li>
                </ul>
                <p>修改pppoe.sh文件 这里面写上重新拨号的几条命令，记得在前两行配置一下环境变量，配置上拨号命令所在的目录，以防出现脚本无法运行的问题。</p>
                <h4 id="运行-1"><a href="#运行-1" class="headerlink" title="运行"></a>运行</h4>
                <p>设置定时任务</p>
                <figure class="highlight ebnf">
                  <table>
                    <tr>
                      <td class="gutter">
                        <pre><span class="line">1</span><br></pre>
                      </td>
                      <td class="code">
                        <pre><span class="line"><span class="attribute">crontab -e</span></span><br></pre>
                      </td>
                    </tr>
                  </table>
                </figure>
                <p>输入crontab的实例命令</p>
                <figure class="highlight awk">
                  <table>
                    <tr>
                      <td class="gutter">
                        <pre><span class="line">1</span><br></pre>
                      </td>
                      <td class="code">
                        <pre><span class="line">*<span class="regexp">/5 * * * * /</span>var<span class="regexp">/py/</span>AutoProxy<span class="regexp">/client/</span>request.sh <span class="regexp">/var/</span>py<span class="regexp">/AutoProxy/</span>client<span class="regexp">/request.conf &gt;&gt; /</span>var<span class="regexp">/py/</span>AutoProxy<span class="regexp">/client/</span>request.log</span><br></pre>
                      </td>
                    </tr>
                  </table>
                </figure>
                <p>注意修改路径，你的项目在哪里，都统一修改成自己项目的路径。 最前面的*/5是5分钟执行一次。 好了，保存之后，定时任务就会开启。</p>
                <h3 id="验证结果"><a href="#验证结果" class="headerlink" title="验证结果"></a>验证结果</h3>
                <p>这样一来，访问服务器地址，就可以得到ADSL拨号客户机的IP了。</p>
                <figure class="highlight routeros">
                  <table>
                    <tr>
                      <td class="gutter">
                        <pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br></pre>
                      </td>
                      <td class="code">
                        <pre><span class="line">import requests</span><br><span class="line"></span><br><span class="line">url = <span class="string">'http://120.27.14.24:5000'</span></span><br><span class="line">proxy = requests.<span class="builtin-name">get</span>(url, auth=(<span class="string">'admin'</span>, <span class="string">'123'</span>)).text</span><br><span class="line"><span class="builtin-name">print</span>(proxy)</span><br></pre>
                      </td>
                    </tr>
                  </table>
                </figure>
                <p>实例结果：</p>
                <figure class="highlight accesslog">
                  <table>
                    <tr>
                      <td class="gutter">
                        <pre><span class="line">1</span><br></pre>
                      </td>
                      <td class="code">
                        <pre><span class="line"><span class="number">116.208.97.22:8888</span></span><br></pre>
                      </td>
                    </tr>
                  </table>
                </figure>
                <h3 id="扩展"><a href="#扩展" class="headerlink" title="扩展"></a>扩展</h3>
                <p>如果你有域名，可以自己解析一个域名，这样就可以直接请求自己的域名，拿到实时好用的代理了，而且定时更新。 <img src="http://opencdn.cuiqingcai.com/proxy.png" alt=""></p>
                <h3 id="代理设置"><a href="#代理设置" class="headerlink" title="代理设置"></a>代理设置</h3>
                <h4 id="urllib2"><a href="#urllib2" class="headerlink" title="urllib2"></a>urllib2</h4>
                <figure class="highlight reasonml">
                  <table>
                    <tr>
                      <td class="gutter">
                        <pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br></pre>
                      </td>
                      <td class="code">
                        <pre><span class="line">import urllib2</span><br><span class="line">proxy_handler = urllib2.<span class="constructor">ProxyHandler(&#123;<span class="string">"http"</span>: '<span class="params">http</span>:<span class="operator">/</span><span class="operator">/</span>' + <span class="params">proxy</span>&#125;)</span></span><br><span class="line">opener = urllib2.build<span class="constructor">_opener(<span class="params">proxy_handler</span>)</span></span><br><span class="line">urllib2.install<span class="constructor">_opener(<span class="params">opener</span>)</span></span><br><span class="line">response = urllib2.urlopen('http:<span class="comment">//httpbin.org/get')</span></span><br><span class="line">print response.read<span class="literal">()</span></span><br></pre>
                      </td>
                    </tr>
                  </table>
                </figure>
                <h3 id="requests"><a href="#requests" class="headerlink" title="requests"></a>requests</h3>
                <figure class="highlight processing">
                  <table>
                    <tr>
                      <td class="gutter">
                        <pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br></pre>
                      </td>
                      <td class="code">
                        <pre><span class="line"><span class="keyword">import</span> requests</span><br><span class="line">proxies = &#123;</span><br><span class="line"><span class="string">'http'</span>: <span class="string">'http://'</span> + proxy,</span><br><span class="line">&#125;</span><br><span class="line">r = requests.<span class="built_in">get</span>(<span class="string">'http://httpbin.org/get'</span>, proxies=proxies)</span><br><span class="line"><span class="built_in">print</span>(r.<span class="built_in">text</span>)</span><br></pre>
                      </td>
                    </tr>
                  </table>
                </figure>
                <p>以上便秒级解决了动态IP解析，自己实现了一遍DDNS，爽！ 那这样以来，以后就可以直接请求你的主机获取一个最新可用的代理IP了，稳定可用，定时变化！ 以上便是ADSL拨号服务器配置的全过程，希望对大家有帮助！</p>
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